It has been well said that 'he who has never learned to obey cannot be a good commander. ' The two are not the same, but the good citizen ought to be capable of both; he should know how to govern like a freeman, and how to obey like a freeman - these are the virtues of a citizen.
I always chose talkative people. And Viva, who was my first wife - we started making films together because she was extraordinarily creative. I was drawn to those people who tended to talk or act differently. The nice thing about using your friends as actors is they trust you. I wouldn't use footage of people that was destructive to them.